A monitoring system and method for elevator regulation

Abstract

The application provides a monitoring system and method for elevator adjustment, which comprises a reference part, a first rotating shaft, a driving part, a visual acquisition unit and an alarm unit. The reference part comprises a reference surface facing a guide side surface of a guide rail. The axis of the first rotating shaft is parallel to the guide side surface of the guide rail. The reference part is arranged at one end of the first rotating shaft close to the guide rail. The driving part is connected to the other end of the first rotating shaft and is used for driving the first rotating shaft to rotate around its axis when the elevator car swings, so as to drive the reference surface to deflect around the axis of the first rotating shaft. The visual acquisition unit is used for acquiring image information of the relative position of the reference surface and the guide side surface. The alarm unit is connected to the visual acquisition unit and is used for sending an alarm information when the threshold value of the deflection amplitude exceeds a predetermined threshold value. The system is used for monitoring the elevator according to the method in the application, the deflection amplitude of the elevator car can be obtained, the alarm information can be sent in time when the deflection amplitude exceeds the predetermined threshold value, and thus the safety of the elevator operation is improved.

Description

Technical Field

[0001] This invention generally relates to the field of elevator monitoring technology, and specifically to a monitoring system and method for elevator regulation. Background Technology

[0002] An elevator generally consists of an elevator car, a traction system, guide rails, and other structural components. The elevator's vertical movement is achieved by the traction system driving the car to move up and down. Typically, the traction system and guide rails are located inside the elevator shaft. The guide rails follow the same direction as the traction system, and the car moves smoothly up and down vertically together through the guidance of the guide rails and the traction drive.

[0003] Because the elevator car is connected to the traction system via steel cables through the car frame, which is typically a crossbeam located in the middle of the car, and the car and car frame are fixed together with bolts, uneven weight distribution inside the car and wear between the steel cables and traction wheels of the traction system can cause the elevator car to tilt, shake, and jam during operation. If this problem is not addressed in time, and the elevator jams while moving, the tilt of the elevator car can easily become excessive, posing a significant safety hazard. Summary of the Invention

[0004] In view of the above problems, this application provides a monitoring system and method for elevator adjustment, which is used to monitor the elevator during vertical adjustment, can obtain the elevator car tilt amplitude in real time, and promptly issue an alarm message when the tilt amplitude threshold exceeds a predetermined threshold to remind maintenance personnel to perform maintenance, thereby improving the safety of elevator operation.

[0005] This invention provides a monitoring system for elevator adjustment, comprising: A reference component is installed on the top of the elevator car, including a reference surface facing the guide rail guide side; The first rotating shaft is horizontally rotatably mounted on the top of the elevator car. The axis of the first rotating shaft is parallel to the guide side of the guide rail. The reference piece is located at the end of the first rotating shaft near the guide rail. A drive component, connected to the other end of the first rotating shaft, is used to drive the first rotating shaft to rotate about its axis when the elevator car swings, so as to drive the reference surface to deflect about the axis of the first rotating shaft; The visual acquisition unit is used to acquire image information of the relative positions of the reference surface and the guide side, and to analyze and obtain the current car tilt amplitude based on the image information; An alarm unit, connected to the visual acquisition unit, is used to issue an alarm message when the threshold of the deflection amplitude exceeds a predetermined threshold.

[0006] Specifically, during the initial installation of the elevator car, the connecting line between the center of the top and bottom of the elevator car is vertical. At this time, the reference plane is parallel to the guide side of the guide rail. The relative positional relationship between the reference plane and the guide rail is acquired by the visual acquisition unit. During the elevator car's ascent and descent, if the elevator car tilts, the first rotating shaft will also tilt accordingly. At this time, the drive component simultaneously drives the first rotating shaft to rotate around the axis in the direction of the tilt, thereby increasing the amount of tilt of the reference plane and making it easier to detect the tilt. Furthermore, the amount of tilt driven by the drive component on the first rotating shaft is consistent with the actual tilt of the elevator car. The magnitude of the tilt is directly proportional to the elevator car's tilt. The greater the tilt, the greater the angle at which the drive component rotates the first shaft. At this time, the visual acquisition unit acquires an image between the reference surface and the guide side of the guide rail. By analyzing the image, the tilt between the reference surface and the guide side is obtained. Based on the magnitude of the tilt, the current posture of the elevator car is determined. When the tilt of the elevator car exceeds a predetermined threshold, the alarm unit is controlled to issue an alarm message. The alarm message can include an audible alarm or an alarm message sent to the maintenance personnel's mobile device via SMS or text message, thereby reminding the maintenance personnel to perform timely maintenance on the elevator and ensuring the safe operation of the elevator.

[0007] Furthermore, the reference surface is parallel to the axis of the first rotating shaft. Specifically, by setting the reference surface to be parallel to the axis of the first rotating shaft, the reference surface is parallel to the guide side. In this case, the vision acquisition unit acquires image information along the axis parallel to the first rotating shaft, which makes it easier to obtain the angle between the reference surface and the guide slope based on the acquired image information, and makes detection easier.

[0008] Furthermore, the vision acquisition unit includes two industrial cameras arranged vertically at both ends of the reference surface, and the image information includes image information of the relative position between the reference surface and the guide side.

[0009] Specifically, by setting industrial cameras at both ends of the reference surface to collect the positional relationship between the two ends of the reference surface and the guide side, the tilt angle between the reference surface and the guide side is calculated based on the size of the reference surface, thereby obtaining the current tilt angle of the elevator car. Using local image acquisition method has better acquisition effect, thus improving the detection accuracy.

[0010] Furthermore, the reference component includes a connecting sleeve that is rotatably connected to the first rotating shaft. At least one arc-shaped groove is provided on the inner circumferential surface of the connecting sleeve. A transmission component extending into the arc-shaped groove is provided on the outer circumferential surface of the first rotating shaft. A first compression spring is provided on both sides of the transmission component. One end of the first compression spring abuts against the transmission component, and the other end abuts against the side wall of the arc-shaped groove.

[0011] Specifically, with this configuration, when the first rotating shaft rotates around the axis, the rotational motion can be transmitted to the reference component through the first compression spring. When the reference component deflects too much and comes into contact with the guide side, it can squeeze the first compression spring to avoid collision, thereby protecting the reference component and preventing jamming.

[0012] Furthermore, the driving component includes at least one driving assembly drivenly connected to the first rotating shaft. The driving assembly includes a first gear shaft drivenly connected to the first rotating shaft, a swing arm rotatably configured via a first pin parallel to the first gear shaft, an inertial element at the lower end of the swing arm, and a driving arm hinged to the upper end of the swing arm via a second pin. One end of the driving arm is provided with a strip groove, a first driven gear extending into the strip groove is provided on the first gear shaft, a rack meshing with the first driven gear is provided on one side wall of the strip groove, and a guide sliding fit is provided with the other side wall of the strip groove to the first driven gear.

[0013] Specifically, during the initial installation of the car, the swing arm is in a vertical state under the gravity of the inertial component, and the reference plane is in a vertical state. When the car tilts, the inertial component remains vertical under the action of inertial force, but the first pin, the reference component, and the first rotating shaft tilt together with the car. At this time, the drive arm deflects around the first pin, thereby driving the drive arm to move. When the drive arm moves, it can drive the first gear shaft to rotate at a certain angle through the rack. The gear shaft drives the first rotating shaft to rotate around its axis, thereby achieving the purpose of driving the first rotating shaft.

[0014] Furthermore, the driving components are provided in a manner comprising two components, which are respectively disposed on both sides of the first rotating shaft, and the two driving components are symmetrically arranged about a vertical plane passing through the axis of the first rotating shaft.

[0015] Specifically, by setting two drive components to drive the first rotating shaft together, the driving force can be increased, ensuring that there is enough force to drive the first rotating shaft to deflect. With sufficient driving force, the swing arm can rotate more sensitively when the car tilts, thereby improving the driving sensitivity of the drive components.

[0016] Furthermore, this application also provides a method for monitoring the vertical adjustment of an elevator using the aforementioned monitoring system, the method comprising the following steps: Step 1: The elevator traction unit drives the elevator car to move up and down to adjust its position. During the elevator car's movement, the visual acquisition unit collects image information of the reference surface and the guide side of the guide rail. Step 2: Analyze the image information, extract the real-time relative position information between the reference surface and the guide side surface in the image information, and obtain the current car tilt amplitude based on the relative position information; Step 3: When the car's tilt exceeds a predetermined threshold, an alarm message is issued.

[0017] Furthermore, the determination that the car's tilt exceeds a predetermined threshold includes: obtaining the duration T of the car's tilt based on the acquired image information; if the duration T exceeds a predetermined value, it is determined that the current tilt of the car exceeds the predetermined threshold.

[0018] Furthermore, the determination that the car's skew amplitude exceeds a predetermined threshold includes: obtaining the skew amplitude of the car at any given time; when the skew amplitude of the car exceeds a predetermined amplitude value ∠α, it is determined that the current car's skew amplitude exceeds the predetermined threshold, wherein the skew amplitude ∠α is the angle between the line connecting the center point of the upper end face and the center point of the lower end face of the car and the vertical line.

[0019] Beneficial effects This invention provides a monitoring system and method for elevator adjustment. The system includes: a reference component disposed on the top of the elevator car, comprising a reference surface facing the guide rail guide side; a first rotating shaft horizontally rotatably disposed on the top of the elevator car, the axis of the first rotating shaft being parallel to the guide rail guide side, the reference component being disposed at one end of the first rotating shaft near the guide rail; a driving component connected to the other end of the first rotating shaft, used to drive the first rotating shaft to rotate around its axis when the elevator car swings, thereby driving the reference surface to deflect around the axis of the first rotating shaft; a visual acquisition unit used to acquire image information of the relative positions of the reference surface and the guide side, and to analyze and obtain the current car deflection amplitude based on the image information; and an alarm unit connected to the visual acquisition unit, used to issue an alarm message when the deflection amplitude threshold exceeds a predetermined threshold. Using this system and the method described in this application to monitor the elevator, the elevator car deflection amplitude can be obtained in real time, and an alarm message can be issued promptly when the deflection amplitude threshold exceeds the predetermined threshold to remind maintenance personnel to perform maintenance, thereby improving the safety of elevator operation. Attached Figure Description

[0020] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the relative position of a monitoring system for elevator adjustment and the elevator car, provided by the present invention.

[0022] Figure 2 This is a schematic diagram of a monitoring system for elevator regulation provided by the present invention.

[0023] Figure 3 This is a schematic diagram of the structure of a monitoring system for elevator adjustment provided by the present invention, viewed from the axial perspective along the first axis of rotation.

[0024] Figure 4 This invention provides a schematic diagram of the connection structure between the first rotating shaft, the reference component, and the driving component in a monitoring system for elevator adjustment.

[0025] Figure 5 This is a schematic cross-sectional view of the connection position between the first rotating shaft and the connecting sleeve in a monitoring system for elevator adjustment provided by the present invention.

[0026] Figure 6 This invention provides a schematic diagram of the internal structure of the outer casing of a drive component in a monitoring system for elevator regulation.

[0027] Figure 7 for Figure 3 The diagram shown is a partially enlarged structural schematic of the power supply point A in a monitoring system for elevator regulation provided by the present invention.

[0028] Figure 8 This is a schematic diagram of a reference component in a monitoring system for elevator adjustment provided by the present invention.

[0029] Figure 9 This invention provides a schematic diagram of the internal structure of a monitoring system for elevator regulation.

[0030] Figure 10 This is a schematic diagram of the end face structure of a reference component in a monitoring system for elevator adjustment provided by the present invention.

[0031] Figure 11 This is a schematic diagram of the end face structure of a reference component hidden scraper in a monitoring system for elevator adjustment provided by the present invention.

[0032] Figure 12 This is a cross-sectional structural diagram of a reference component in a monitoring system for elevator adjustment provided by the present invention.

[0033] Figure 13 This is a schematic diagram of a monitoring method for elevator regulation provided by the present invention. Detailed Implementation

[0034] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] Example 1 This invention provides a monitoring system 1A for elevator adjustment, referenced. Figures 1-3 As one specific implementation method, the system includes: Reference component 1 is installed on the top of the elevator car, including a reference surface 10 facing the guide side 910 of the guide rail 91; The first rotating shaft 2 is horizontally rotatably mounted on the top of the elevator car. The axis of the first rotating shaft 2 is parallel to the guide side 910 of the guide rail 91. The reference member 1 is located at one end of the first rotating shaft 2 near the guide rail. The driving component 3 is connected to the other end of the first rotating shaft 2 and is used to drive the first rotating shaft 2 to rotate around its axis when the elevator car swings, so as to drive the reference surface to deflect around the axis of the first rotating shaft 2. The visual acquisition unit 4 is used to acquire image information of the relative position of the reference surface and the guide side, and to analyze and obtain the current car tilt amplitude based on the image information; Alarm unit 5, connected to the visual acquisition unit 4, is used to issue an alarm message when the threshold of the deflection amplitude exceeds a predetermined threshold.

[0037] For details, please refer to Figure 1It should be noted that the guide rail 91 is a vertically installed guide rail on the side wall of the elevator shaft 92, used to guide the elevator's vertical adjustment. The guide side 910 is the side of the guide rail. During the initial installation of the elevator car, the connecting line between the center of the top of the elevator car and the center of the bottom of the elevator car is vertical. At this time, the reference surface 10 is parallel to the guide side 910 of the guide rail 91. The relative positional relationship between the reference surface and the guide rail 91 is collected by the visual acquisition unit. During the elevator car's ascent and descent, if the elevator car tilts, the first rotating shaft 2 will also tilt along with the car. At this time, the drive component 3 simultaneously drives the first rotating shaft 2 to rotate around the axis in the direction of the elevator car's tilt, thereby increasing the tilt amount of the reference component 1 and making it easier to detect the car tilt. When a skew occurs, and the skew amount of the first rotating shaft driven by the drive component 3 is proportional to the actual skew amount of the elevator car, the greater the skew amount of the elevator car, the greater the angle of rotation of the first rotating shaft driven by the drive component 3. At this time, the visual acquisition unit 4 acquires an image between the reference surface and the guide side 910 of the guide rail. By analyzing the image, the skew amount between the reference surface and the guide side is obtained, and the current posture of the elevator car is determined according to the magnitude of the skew amount. When the skew amplitude of the elevator car exceeds a predetermined threshold, the control alarm unit 5 issues an alarm message. The alarm message can include an audible alarm message, or it can be sent to the mobile device of the maintenance personnel via SMS or text message, thereby reminding the maintenance personnel to perform timely maintenance on the elevator and ensure the safe operation of the elevator.

[0038] Furthermore, as a preferred embodiment, the reference surface 10 is parallel to the axis of the first rotating shaft 2. Specifically, by setting the reference surface 10 to be parallel to the axis of the first rotating shaft, the reference surface is parallel to the guide side surface 910. In this case, the visual acquisition unit acquires image information along the axis parallel to the first rotating shaft, which is more conducive to obtaining the angle between the reference surface and the guide slope based on the acquired image information, and is easier to detect.

[0039] Furthermore, as a preferred embodiment, refer to Figure 2 The visual acquisition unit 4 includes two industrial cameras arranged vertically at both ends of the reference surface, and the image information includes image information of the relative position between the reference surface 10 and the guide side.

[0040] Specifically, by setting industrial cameras at both ends of the reference surface, the positional relationship between the two ends of the reference surface and the guide side 910 is collected. Then, the skew angle between the reference surface and the guide side 910 is calculated based on the size of the reference surface, thereby obtaining the current skew angle of the elevator car. Using local image acquisition method has better acquisition effect, thereby improving the detection accuracy.

[0041] Furthermore, when two industrial cameras are set, the industrial cameras are used to acquire image information of the positional relationship between the two ends of the reference surface 10 and the guide side 910. The image information includes video information and / or picture information. After acquiring the image information, the image information is processed to extract the contour lines of the reference surface and the guide side. Then, the distance between the two ends of the reference surface and the guide slope is obtained according to the contour lines. Then, the included angle between the reference surface and the guide side is obtained according to the length of the reference surface in the vertical direction. Finally, the tilt angle of the car is obtained.

[0042] Furthermore, as a specific implementation method, refer to Figures 2-5 The reference component 1 includes a connecting sleeve 1a rotatably connected to the first rotating shaft 2. At least one arc-shaped groove 1a-1 is provided on the inner circumferential surface of the connecting sleeve 1a. A transmission component 21 extending into the arc-shaped groove 1a-1 is provided on the outer circumferential surface of the first rotating shaft 2. A first compression spring 22 is provided on both sides of the transmission component 21. One end of the first compression spring 22 abuts against the transmission component 21, and the other end abuts against the side wall of the arc-shaped groove 1a-1.

[0043] For details, please refer to Figure 2 A support frame 1A-1 is installed on the top of the car. The first rotating shaft 2 is rotatably mounted on the support frame 1A-1. The reference piece 1 is a strip-shaped piece. A connecting sleeve 1a is provided on the side of the reference piece 1 away from the guide side 910. Figure 4 , Figure 5 The end of the first rotating shaft 2 extends into the connecting sleeve 1a and rotates with the connecting sleeve. The connecting sleeve and the rotating shaft are axially limited. Three arc-shaped grooves 1a-1 are evenly spaced around the axis on the inner side wall of the connecting sleeve. A transmission component 21 extending into the arc-shaped groove 1a-1 is provided on the outer circumference of the first rotating shaft 2. A first compression spring is provided on both sides of the transmission component. In the initial state, both first compression springs are in a compressed state. The transmission component 21 is in the middle position of the arc-shaped groove 1a-1. With this arrangement, when the first rotating shaft rotates around the axis, the rotation action can be transmitted to the reference component 1 through the first compression spring 22. When the reference component 1 deflects too much and touches the guide side, it can squeeze the first compression spring 22 to avoid collision, thereby protecting the reference component 1 and preventing jamming.

[0044] Further, as a specific implementation, the specific structure of the driving component 3 is as follows: the driving component 3 includes at least one driving assembly 3a that is drivenly connected to the first rotating shaft 2. The driving assembly 3a includes a first gear shaft 31 that is drivenly connected to the first rotating shaft 2 and a swing arm 32 that is rotatably arranged through a first pin 320 parallel to the first gear shaft 31. The lower end of the swing arm 32 is provided with an inertial element 34. The upper end of the swing arm 32 is hinged to a driving arm 33 through a second pin 330. One end of the driving arm 33 is provided with a strip groove 331. A first driven gear 310 that extends into the strip groove 331 is provided on the first gear shaft 31. A rack 332 that meshes with the first driven gear is provided on one side wall of the strip groove 331. The other side wall 333 of the strip groove 331 is guided and slidably engaged with the first driven gear 310.

[0045] For details, please refer to Figure 3 , Figure 4 , Figure 6 , Figure 7 The drive component 3 includes an outer shell 3a-1 mounted on a support frame 1A-1. A first gear 23 is connected to the end of the first rotating shaft 2 that extends into the outer shell. An intermediate shaft 37 and a gear shaft 31 are sequentially arranged below the first rotating shaft inside the outer shell. An intermediate gear 370, connected to the first gear, is mounted on the intermediate shaft 37. A second driven gear 311, connected to the intermediate gear, is mounted on the gear shaft 31. A first driven gear 310 is mounted around the end of the gear shaft 31 that extends out of the outer shell 3a-1. The first driven gear and the gear shaft are connected via a key. A support plate 32A is located on the top of the car, on one side of the first rotating shaft. A first pin 320 is mounted on the support plate 32A. The middle section of the swing arm is rotatably mounted on the first pin. An inertial element is located at the lower end of the swing arm. The drive arm is connected to the upper end of the swing arm via a second pin, with the first pin parallel to the second pin. (Reference) Figure 3 , Figure 7 When the car is initially installed, the swing arm is in a vertical state under the gravity of the inertial member 34. At this time, the reference plane 10 is in a vertical state. When the car tilts, the inertial member 34 remains in a vertical state under the action of inertial force, but the first pin, the reference member and the first rotating shaft tilt together with the car. At this time, the drive arm 33 deflects around the first pin 320, which can drive the drive arm 33 to move. When the drive arm moves, it can drive the first driven gear 310 to rotate through the rack 332, which in turn drives the gear shaft 31 to rotate. The gear shaft drives the intermediate gear 370 to rotate through the second driven gear 311. The intermediate gear 370 drives the first gear 23 to rotate, which in turn drives the first rotating shaft to rotate around its axis, thereby achieving the purpose of driving the first rotating shaft.

[0046] Furthermore, as a preferred embodiment, refer to Figure 2 , Figure 3 , Figure 6 The driving component 3a is provided in a configuration including two components, which are respectively located on both sides of the first rotating shaft. The two driving components 3a are symmetrically arranged about a vertical plane passing through the axis of the first rotating shaft.

[0047] Specifically, when two drive components 3a are provided, the second driven gears 311 connected to the ends of the two intermediate shafts of the two drive components are respectively located on both sides of the housing 3a-1. As a working state, refer to... Figure 6 In one scenario, the car tilts, causing the swing arms of both drive components 3a to swing. This, in turn, drives the two gear shafts 31 to rotate. The rotation directions of the two gear shafts are as follows: Figure 6 As shown, the intermediate gear 370 is driven to rotate in one direction. By setting two drive components 3a to drive the first rotating shaft together, the driving force can be increased, ensuring that there is enough force to drive the first rotating shaft to deflect. With sufficient driving force, the sensitivity of the swing arm to rotate when the car is tilted is higher, thereby improving the driving sensitivity of the drive component 3a.

[0048] Furthermore, as a specific implementation method, refer to Figures 4-6 , Figures 8-12The specific structure of reference component 1 is as follows: it includes a strip-shaped housing 11, a strip-shaped component 1c is inserted into the side of the strip-shaped housing facing the guide rail, wherein the reference surface 10 is the end face of the strip-shaped component, a guide component 14 is slidably arranged inside the strip-shaped housing, the guide component 14 is connected to the strip-shaped component 1c, a connecting housing 1b is detachably arranged on the side of the strip-shaped housing away from the guide rail, a receiving space is formed inside the connecting housing, a connecting sleeve 1a is arranged on the connecting housing, wherein a cylindrical channel is coaxially arranged inside the first rotating shaft 2, a second rotating shaft 24 is rotatably arranged inside the cylindrical channel, an eccentric disk 240 is arranged at the position where the second rotating shaft extends into the connecting housing, a second gear shaft 26 is rotatably arranged on the side wall of housing 3a-1, along the second gear shaft Along the axial direction, a second gear 261 and a third gear 262 are spaced apart on the second gear shaft. The second gear 261 meshes with the first gear 23. A gear ring 25 is rotatably connected to the end of the second rotating shaft 24. The gear ring 25 meshes with the third gear 262. Two guide rods 16 are provided on the side wall of the strip housing 11 away from the guide rail, corresponding to the area of ​​the connecting housing. One end of the two guide rods 16 is connected to the guide member 14, and the other end is provided with a connecting plate 161. The connecting plate is correspondingly provided with the eccentric disk 240. Tension elastic members 15 are provided between both ends of the guide member 14 and the side wall of the strip housing 11 away from the guide rail. The tension elastic members 15 can provide the guide member 14 with an elastic force that contracts into the outer shell.

[0049] Furthermore, it is understandable that when the car tilts, the reference element 1 also tilts simultaneously. This causes one end of the reference surface 10 to deflect towards the guide side, creating a risk of collision between the reference surface and the guide side 910. After a collision, the first compression spring is compressed for cushioning, which affects the detection accuracy. To avoid or reduce this phenomenon, the reference... Figure 9In the initial state, when the car is vertical, the reference plane 10 is parallel to the guide side 910 of the guide rail. At this time, the drive assembly 3a is in the initial state, the second rotating shaft 24 is in the initial state, and the highest point of the eccentric disk 240 contacts the connecting plate 161. Under the thrust of the eccentric disk 240, the guide member 14 is pushed to contact the end of the inner cavity of the strip housing 11, and the tension elastic member 15 is stretched. At this time, the strip member 1c is in the maximum extended state. When the car tilts, the first rotating shaft 2 deflects. The first rotating shaft drives the second gear shaft to rotate through the first gear 23, and the second gear shaft rotates through the third gear 2. 62 drives the second rotating shaft 24 to deflect in the opposite direction to the first rotating shaft 2, thereby causing the eccentric disk 240 to rotate. At this time, under the elastic force of the tension elastic element 15, the guide element 14 is pulled to move, thereby causing the strip element 10 to contract. The greater the angle of deflection of the first rotating shaft, the greater the amount of contraction of the strip element. With this setting, when the elevator car tilts and the first rotating shaft rotates, the strip element 1c can be driven to contract, thereby causing the reference surface 10 to contract away from the guide side 910. This reduces the risk of the reference surface 10 touching the guide side 910, improves monitoring safety, and ensures monitoring accuracy.

[0050] Furthermore, it is understandable that in order to extend the service life of guide rail 91 and reduce its wear, some elevators are currently equipped with devices for applying lubricating oil to the guide rails. After applying lubricating oil to the guide rails, the reference surface 10 will inevitably be covered with lubricating oil. After the lubricating oil is covered, flocculent matter easily adheres to it. This flocculent matter affects the reference accuracy of the reference surface and will cause errors in the reference surface contour obtained by the industrial camera through image processing, thus affecting the detection effect. In order to reduce the impact of the above problems on the detection, the reference surface 10... Figures 10-12 A scraper 12 is provided on the end face of the strip-shaped housing 11 near the guide side 910. A T-shaped guide groove 110 is provided on the side wall of the strip-shaped housing. A T-shaped guide 121 is provided on the scraper to guide and cooperate with the T-shaped guide groove 110. A drive connecting block 120 is provided in the middle of the scraper 12. A rack 1201 is provided on the side of the drive connecting block facing the strip-shaped housing. A drive gear 13 is provided inside the strip-shaped housing 11 and is driven and connected to the rack. A micro motor 131 is driven and connected to the drive gear 13. An avoidance groove 111 adapted to the drive connecting block 120 is provided on the end face of the strip-shaped housing. A groove that avoids the T-shaped guide 121 and the drive connecting block 120 is provided on the reference surface of the strip-shaped component 1c. Figure 10 In the initial state, the wiping member 12 is in contact with the strip member 1c, and the strip member and the wiping member slide together, so as not to affect the contraction and extension of the strip member 1c.

[0051] Further, refer to Figure 3A limiter 35 is installed on the trajectory of the inertial component's swing. The limiter is connected to the elevator car. A limit surface 350 is provided on the side of the limiter 35 closest to the inertial component. A detection sensor 36 is installed between the limit surface and the inertial component. An electromagnet 351 is installed on the limit surface 350, and the electromagnet is connected to a control device, which is also connected to a micro motor 131. Specifically, during the actual operation of the elevator, if a skew occurs when the elevator adjusts its height, the swing arm 32 will swing, causing a change in the distance between the inertial component 34 and the limit surface 350. When the elevator is running smoothly, the amplitude of the elevator car's skew and vibration is small, resulting in a small amplitude of the inertial component's swing. This ensures safe operation, and even a large monitoring error will not affect the safe operation of the elevator. The probability of the inertial component and the detection sensor coinciding is low. However, when the elevator's skew angle increases... When the inertial component swings to the point where it partially overlaps with the detection sensor 36, the detection sensor is triggered. The control device connects to the detection sensor and controls the electromagnet 351 to generate magnetism. The inertial component is made of a material that can be attracted by a magnet. Under the magnetic force of the electromagnet, the inertial component is attracted to the limiting surface and maintains its current position. When the inertial component contacts the limiting surface, the angle of the eccentric disk deflection can cause the strip 1c to contract. At this time, the reference surface is exactly flush with the scraping end of the scraper 12. At this time, the micro motor is controlled to work, and the drive rod scraper 12 reciprocates to scrape and clean the reference surface, thereby ensuring the cleanliness of the reference surface. After the scraper returns to the initial position, the electromagnet is de-energized, and the inertial component falls under the action of gravity and enters the monitoring work again.

[0052] Example 2 This application also provides a monitoring method for elevator adjustment, the method including the aforementioned monitoring system for elevator adjustment, the method comprising the following steps: Step 1: The elevator traction unit drives the elevator car to move up and down to adjust its position. During the elevator car's movement, the visual acquisition unit 4 acquires image information of the reference surface 10 and the guide side of the guide rail. Step 2: Analyze the image information, extract the real-time relative position information between the reference surface 10 and the guide side surface in the image information, and obtain the current car tilt amplitude based on the relative position information; Step 3: When the car's tilt exceeds a predetermined threshold, an alarm message is issued.

[0053] Furthermore, the determination that the car's tilt exceeds a predetermined threshold includes: obtaining the duration T of the car's tilt based on the acquired image information; if the duration T exceeds a predetermined value, it is determined that the current tilt of the car exceeds the predetermined threshold.

[0054] Specifically, when the car is working, if the car has a large load and the center of gravity is off-center, it may cause the car to deform and tilt. If the tilt is maintained for a long time, even if the tilt is not large, it will still pose a great safety hazard. Therefore, if the car is tilted for a longer time than the predetermined time T, the car is determined to be in this working condition, where T is between 10 seconds and 30 seconds.

[0055] Furthermore, the determination that the car's skew amplitude exceeds a predetermined threshold includes: obtaining the skew amplitude of the car at any given time; when the skew amplitude of the car exceeds a predetermined amplitude value ∠α, it is determined that the current car's skew amplitude exceeds the predetermined threshold, wherein the skew amplitude ∠α is the angle between the line connecting the center point of the upper end face and the center point of the lower end face of the car and the vertical line.

[0056] Specifically, during the operation of the elevator car, if there is poor guidance between the car and the guide rail, large guide gap, skewed guide rail, or slippage between the wire rope and the drag wheel, stuttering and vibration will occur during the elevator's up and down position adjustment, which will cause the elevator car to skew significantly.

[0057] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A monitoring system for elevator regulation, characterized in that, include: Reference component (1) is set on the top of the elevator car, including a reference surface (10) facing the guide rail guide side. The first rotating shaft (2) is horizontally rotatably mounted on the top of the elevator car. The axis of the first rotating shaft (2) is parallel to the guide side of the guide rail. The reference piece (1) is mounted on one end of the first rotating shaft (2) near the guide rail. The driving component (3) is connected to the other end of the first rotating shaft (2) and is used to drive the first rotating shaft (2) to rotate around its axis when the elevator car swings, so as to drive the reference surface to deflect around the axis of the first rotating shaft (2); The visual acquisition unit (4) is used to acquire image information of the relative position of the reference surface and the guide side, and to analyze and obtain the current car tilt amplitude based on the image information; An alarm unit (5) is connected to the visual acquisition unit (4) and is used to issue an alarm message when the threshold of the skew amplitude exceeds a predetermined threshold. The driving component (3) includes at least one driving assembly (3a) drivenly connected to the first rotating shaft (2). The driving assembly (3a) includes a first gear shaft (31) drivenly connected to the first rotating shaft (2) and a swing arm (32) rotatably connected by a first pin (320) parallel to the first gear shaft (31). The lower end of the swing arm (32) is provided with an inertial element (34). The upper end of the swing arm (32) is hinged to a driving arm (33) via a second pin (330). One end of the driving arm (33) is provided with a strip groove (331). A first driven gear (310) extending into the strip groove (331) is provided on the first gear shaft (31). A rack (332) meshing with the first driven gear is provided on one side wall of the strip groove (331). The other side wall (333) of the strip groove (331) is guided and slidably engaged with the first driven gear (310).

2. The monitoring system for elevator adjustment according to claim 1, characterized in that, The reference plane (10) is parallel to the axis of the first rotating shaft (2).

3. A monitoring system and method for elevator regulation according to claim 1 or 2, characterized in that, The visual acquisition unit (4) includes two industrial cameras arranged vertically at both ends of the reference surface, and the image information includes image information of the relative position between the reference surface (10) and the guide side.

4. A monitoring system for elevator adjustment according to claim 1, characterized in that, The reference component (1) includes a connecting sleeve (1a) rotatably connected to the first rotating shaft (2). At least one arc-shaped groove (1a-1) is provided on the inner circumferential surface of the connecting sleeve (1a). A transmission component (21) extending into the arc-shaped groove (1a-1) is provided on the outer circumferential surface of the first rotating shaft (2). A first compression spring (22) is provided on both sides of the transmission component (21). One end of the first compression spring (22) abuts against the transmission component (21), and the other end abuts against the side wall of the arc-shaped groove (1a-1).

5. A monitoring system for elevator adjustment according to claim 1, characterized in that, The drive assembly (3a) is provided in two parts, which are respectively located on both sides of the first rotating shaft. The two drive assemblies (3a) are symmetrically arranged about a vertical plane passing through the axis of the first rotating shaft.

6. A monitoring method for elevator adjustment, wherein the method employs the monitoring system described in any one of claims 1-5, characterized in that, Includes the following steps: Step 1: The elevator traction unit drives the elevator car to rise and fall to adjust its position. During the elevator car's rise and fall, the visual acquisition unit (4) collects image information of the reference surface (10) and the guide side of the guide rail. Step 2: Analyze the image information, extract the real-time relative position information between the reference surface (10) and the guide side surface in the image information, and obtain the current car tilt amplitude based on the relative position information; Step 3: When the car's tilt exceeds a predetermined threshold, an alarm message is issued.

7. A monitoring method for elevator adjustment according to claim 6, characterized in that, The car's tilt amplitude exceeding a predetermined threshold includes: obtaining the duration T of the car's tilt based on the acquired image information; if the duration T exceeds a predetermined value, it is determined that the current car's tilt amplitude exceeds the predetermined threshold.

8. A monitoring method for elevator adjustment according to claim 6, characterized in that, The car's skew amplitude exceeding a predetermined threshold includes: obtaining the car's skew amplitude at any given time; when the car's skew amplitude exceeds a predetermined amplitude value ∠α, it is determined that the current car's skew amplitude exceeds the predetermined threshold, where the car's skew amplitude ∠α is the angle between the line connecting the center point of the upper end face and the center point of the lower end face of the car and the vertical line.

Images